*{
    margin: 0;
    padding: 0;
    list-style: none;
}
html,body,#root{
    width: 100%;
    height: 100%;
}
.box{
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    header{
        width: 100%;
        height: 45px;
        background-color: #0077f2;
        img{
            float: right;
            width: 25px;
            margin: 7px;
        }
    }
    main{
        flex: 1;
        background-color: #f2f2f2;
        overflow: auto;
    }
    footer{
        overflow: hidden;
        width: 100%;
        height: 70px;
        display: flex;
        .adm-tab-bar{
            width: 100%;
            height: 100%;
            padding-top: 10px;
        }
    }
}